| 摘要 |
A projection type extender comprises a protective case, bracket for mounting the protective case to advertising structure, wherein a projection device optically connected to the screen on the advertising carrier and digital signal source connected to the projection device are arranged in the protective case. A cooling system, heating system, video content control system connected to the digital signal source, lighting sensor connected to apparatus for projection device current and digital signal source on/off switching, voltage stabilizer, modem and Wi-Fi device intended for video content remote control are arranged in the protective case. |
